In 'Hello, Who?', players step into the shoes of an experimental psychologist who wakes up in a dark, abandoned city after a botched therapy session. As they navigate through distorted memories and fragmented realities, players must reconstruct the mind of their most enigmatic patient, who may hold the keys to both their salvation and damnation. The game evolves through dialogues, choices, and shocking revelations, making it a thrilling rollercoaster of emotions where trust is elusive and every interaction counts.